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Finding the Fourth Proportional to 160,860.66, 221,785.72 and 117,765.32

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Solution

The fourth proportional to 160,860.66, 221,785.72 and 117,765.32 is: 162,368.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,860.66 : 221,785.72 = 117,765.32 : x
  2. Step 2: Convert to fraction form
    160,860.66/221,785.72 = 117,765.32/x
  3. Step 3: Cross multiply
    160,860.66x = 221,785.72 × 117,765.32
  4. Step 4: Simplify right side
    160,860.66x = 26,118,666,287.23
  5. Step 5: Solve for x
    x = 26,118,666,287.23/160,860.66
  6. Step 6: Final answer
    x = 162,368.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.